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SUSE tomcat11 Important Security Fixes Advisory 2026-22196-1

suse
Calendar Grey June 23, 2026
Dist Suse Esm H88
A significant security update for tomcat11 on SUSE fixes seven issues including authentication concerns.
An update that solves seven vulnerabilities can now be installed.

Summary

## This update for tomcat11 fixes the following issues Update to Tomcat 11.0.22: * CVE-2026-41284: Unbounded read in WebDAV LOCK and PROPFIND handling (bsc#1265162). * CVE-2026-41293: HTTP/2 request headers not validated (bsc#1265163). * CVE-2026-42498: WebSocket authentication header exposure (bsc#1265165). * CVE-2026-43512: digest authenticator will authenticate any unknown user (bsc#1265145). * CVE-2026-43513: LockOutRealm treats user names as case-sensitive (bsc#1265166). * CVE-2026-43514: AJP secret compared in non-constant time (bsc#1265167). * CVE-2026-43515: Security constraints not correctly applied (bsc#1265168). Changes: * Catalina * Add: Enhance version.sh and version.bat to display APR, Tomcat Native, and

Topics%20covered

Topics Covered

security advisory SuSE important authentication websocket tomcat11

References

* bsc#1265145

* bsc#1265162

* bsc#1265163

* bsc#1265165

* bsc#1265166

* bsc#1265167

* bsc#1265168

Cross-

* CVE-2026-41284

* CVE-2026-41293

* CVE-2026-42498

* CVE-2026-43512

* CVE-2026-43513

* CVE-2026-43514

* CVE-2026-43515

CVSS scores:

* CVE-2026-41284 ( SUSE ): 7.1

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2026-41284 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-41284 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-41293 ( SUSE ): 8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2026-41293 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-41293 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-42498 ( SUSE ): 6.9

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22196-1
Release Date: 2026-06-20T06:54:39Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important authentication websocket tomcat11

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